查询词典 antennas

In VHF/UHF(Very High Frequency/Ultra High Frequency),the standard microstrip antennas of half-wave length are still very big .

在较低频段，传统的半波长微带天线尺寸仍然太大。

Recently, uniplanar antennas have been used in many applications in millimeter-wave systems.

近年来，单面型天线在毫米波系统的应用相当的多。

In the earlier years, all cellular phones shipped with external antennas that stuck out in aesthetically unpleasing ways.

在早些年，所有装有外部天线的手机在在审美上都是不好的。

To analyze the multimode feed antennas, the integral equation of the antenna is solved by using a method of moment with vector triangle basis function.

为了分析多馈源天线，采用矢量三角形基函数的矩量法求解天线积分方程。

Both Nav 1 and 2 were also connected to separate glideslope and VOR/localizer antennas.

Nav 1和2还分别和下滑道和VOR/航道天线相连。

I'm designing and having made an aluminum panel box featuring a lockable and water-tight exterior, allowing me to collect and properly route assorted lengths of coax feeding current and future station antennas.

我设计并制做了一个防水及能上锁的铝壳，让我来采集与完全发射多种长度的同轴电缆和将来配套的各式各样天线。

In reference [1] , Waterhouse proposed the method of reducing resonance frequency and dimension of antenna by putting a shorting post in the microstrip patch antenna, and experimented on this kind of antennas.

但是，这种天线在较低频率应用时尺寸太大，不能满足实际要求，从而影响了微带贴片天线在低频频段的应用。

The position of microstrip antennas feeding spot determines the wave pattern of antenna radiation and whether antenna can match feeding line.

微带天线馈点的位置决定天线辐射波的模式和天线与馈线的匹配情况。

This structure can be utilized to wide band antennas and circuits.

这种结构可用于实际的宽带电路和天线中。

Then by using the properties of Wishart distribution, we derived the channel capacity and its upper and lower bounds for MIMO-OFDM systems with arbitrary number of antennas.

在此基础上利用Wishart分布的性质详细推导了任意天线数的MIMO OFDM系统的信道容量及其上下限。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。